Made this rack and pinion servo actuated button pusher for my PC. I run it wired into an Arduino Nano, and it's plugged into a KASA Smart Plug, but any smart plug where you can connect it to your home network and control from your phone will work. Allows me to turn my PC on from anywhere with my phone to remote into it if I'm away from home, and also to have it booted up for when I get home. I've attached the code along with the wiring diagram if you'd like to build this yourself! It was a fun project, and I hope you enjoy it! 

Code:  [https://app.arduino.cc/sketches/6ba4b641-95fc-4c54-9829-3b2b476961f4?view-mode=preview](https://app.arduino.cc/sketches/6ba4b641-95fc-4c54-9829-3b2b476961f4?view-mode=preview)

Wiring Diagram: 

To attach the switch to the top of my PC, I applied a command strip to the undersides, just in case I wanted to take it off and turn off my PC manually. I ended up gluing the spur gear to the servo, rather than screw it in, just to ensure it was clocked correctly for the rack's needed travel. To make it work correctly with the code I've attached. Set the rack and pinion to be flush with the bottom side of the servo hold, as it's going to initialize the encoder and set the position to 10 so it can travel to 0. 

Parts list: 

Servo: [https://www.amazon.com/dp/B07MFK266B?ref_=ppx_hzod_image_dt_b_fed_asin_title_0_0&th=1](https://www.amazon.com/dp/B07MFK266B?ref_=ppx_hzod_image_dt_b_fed_asin_title_0_0&th=1)

1x Servo Mount

1x Spur Gear

1x Gear Rack

A/R Super Glue

Happy Printing/Tinkering!